Let's divide 286439 by 42
We want to figure out the number of times 286439 can be divided by 42.

On to step 1:
42 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 42

Moving on to step 2:
When dividing 28 by 42, we get 0 with a remainder of 28.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 28 after subtracting 0 from 28.
Fetch the next digit (6) from the dividend, attach it to 28 and continue: 286 / 42

Moving on to step 3:
The number 42 fits into 286 6 times, leaving a remainder of 34.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 252 from 286, we get 34.
Bring next digit (4) of the dividend behind the 34 and repeat the process: 344 / 42

Moving on to step 4:
42 goes into 344 8 times with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 68.0
Subtract 336 from 344 to get 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 42

On to step 5:
When dividing 83 by 42, we get 1 with a remainder of 41.
Write down 1 as next digit of the result. 
Result so far: 681.0
Deduct 42 from 83 and we're left with 41.
Grab the next digit (9) from the dividend, add it to 41, then carry on: 419 / 42

Moving on to step 6:
42 can be fit into 419 9 times, resulting in a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 6819.0
Subtracting 378 from 419 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 7:
If we divide 410 by 42, we get 9 and a remainder of 32.
Put 9 as the next digit of the answer. 
Result so far: 6819.9
Deduct 378 from 410 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 8:
When dividing 320 by 42, we get 7 with a remainder of 26.
The number 7 becomes the next digit in our result. 
Result so far: 6819.97
Deduct 294 from 320 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 9:
The number 42 fits into 260 6 times, leaving a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 6819.976
Subtracting 252 from 260 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
42 goes into 80 1 times with a remainder of 38.
Use 1 as the next digit of our solution. 
Result so far: 6819.9761
If we subtract 42 from 80, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 11:
42 can be fit into 380 9 times, resulting in a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 6819.97619
Deduct 378 from 380 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 12:
42 goes into 20 0 times with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 6819.97619
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 13:
42 goes into 200 4 times with a remainder of 32.
Use 4 as the next digit of our solution. 
Result so far: 6819.9761904
Subtract 168 from 200 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 14:
42 goes into 320 7 times with a remainder of 26.
Put 7 as the next digit of the answer. 
Result so far: 6819.97619047
If we subtract 294 from 320, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

In conclusion, the division gives 6819.97619047 with a balance of 2.6e-08.